Catalog of asteroid positions and B-values from digitized photographic observations of the Northern Sky Survey (Kitab part)

S.V. Shatokhina1, H. Relke2, Q.Yuldoshev3, V.M. Andruk1, Yu. I. Protsyuk4, M. Muminov5

1Main Astronomical Observatory of National Academy of Sciences, Kyiv, Ukraine
2Walter Hohmann Observatory, Essen, Germany
3Ulugh Beg Astronomical Institute UAS, Tashkent, Uzbekistan
4Research Institute "Mykolaiv Astronomical Observatory", Mykolaiv, Ukraine
5Andijan State University, Andijan, Uzbekistan

Photographic observations were obtained in 1981-1993 with the Zeiss Double Wide Angle Astrograph (D/F = 40/300, 69"/mm) at the Kitab observatory of the Republic of Uzbekistan.

Digitizing of photographic plates has been carried out with the help of Epson Expression 10000XL scanner with 16-bit gray levels and resolution of 1200 dpi. Images of all objects registered on plates were processed using the advanced software complex for CCD images processing MIDAS/ROMAFOT in the LINUX environment. Additional software modules, developed and implemented in MAO NASU, provide both the digit-ized images processing and the final product as a catalog of positions and stellar magnitudes of all registered objects [1, 2].

The processing of the digitized Northern Sky Survey (FON project) observations resulted in a few catalogs of coordinates and B-magnitudes for more than 19 million stars and galaxies from the FON-Kyiv part and more than 13 million stars and galaxies from the FON-Kitab part [3]. Based on data from the FON-Kitab processing, the catalog of 2728 topocentric positions and B-magnitudes of asteroids and comets have been compiled. Asteroid coordinates and B-magnitudes were obtained in the Tycho-2 reference catalog system and the system of photoelectric standards, respectively. The contents of the catalog and data analysis are presented in detail in a published article [4].

Those images of asteroids that were fixed on photographic plates in the immediate vi-cinity of images of stars from the Gaia DR2 catalog were excluded from the compiled catalog. We considered them to be ambiguous identifications of asteroid images.

The observations were carried out with both telescope tubes, so two plates with the same center were exposed simultaneously. As a result, 1412 asteroid positions are paired in the catalog, and the remaining 1316 positions are single. For paired positions, the mean values of equatorial coordinates, B-magnitudes, and their root-mean-square errors are given. The RMS errors of equatorial coordinates and B-magnitudes of asteroids averaged over the stellar magnitude intervals are presented in the following figures. A histogram of the O-C differences for all asteroid positions is shown also.

Data description:

              Right ascension and declination: ICRF/J2000.0 	           


 FileName    Lrecl  Records  Explanations
ReadMe          80          This file
CATALOG.dat    118          2728 topocentric positions of asteroids and comets
Byte-by-byte Description of files: CATALOG.dat
   Bytes Format Units   Label      Explanations
 01-04   I4    number Pl          Plate number according to log-book
 06-06   A1    name   name        Tube of telescope
 08-11   I4    year   year        Date of observation, year
 13-14   I2    month  mo          Date of observation, month
 16-24   F9.6  day    day         Date of observation, day
 26-33   A8    name   name        Name of asteroid or comet
 36-37   I2    hour   hh          Right Ascension J2000, hours
 39-40   I2    minute mn          Right Ascension J2000, minutes
 42-47   F6.3  second ss          Right Ascension J2000, seconds
 49-49   A1     ----   --         Sign of Declination J2000
 50-51   I2    degree deg         Declination J2000, degrees
 53-54   I2    arcmin min         Declination J2000, arcminutes
 56-60   F5.2  arcsec sec         Declination J2000, arcseconds

 63-67   F5.2  mag    Bph         Photographic B magnitude
 69-74   F6.3  2.17px FWHM        Diameter of asteroid image
 76-82   F7.3  max256 cI          Intensity in the center of image
 84-88   F5.2  arcsec O-CRA       Difference (O-C)RA =15(O-C)RAcos(DEC), arcsec
 90-94   F5.2  arcsec O-CDEC      Difference (O-C)DEC, arcsec
 96-100  F5.2  mag    B-V         Difference B-V(ephemeris), magnitude
102-106  F5.2  arcsec sigmaRA     Root-mean-square error of RA*
108-112  F5.2  arcsec sigmaDEC    Root-mean-square error of DEC*
114-118  F5.2  mag    sigmaB      Root-mean-square error of B*
*   99.99 means absence of data

Data (10.6 Kb).File: ASTEROIDS-KITAB-2020.dat.


1. Andruk, V. M.; Pakuliak, L. K.; Golovnia, V. V.; Ivanov, G. O.; Yatsenko, A. I.; Shatokhina, S. V.; Yizhakevych, O. M. Catalog of equatorial coordinates and B-magnitudes of stars of the FON project , Kinematics and Physics of Celestial Bodies, 2016,vol. 32, issue 5, pp. 260-263

2. Protsyuk, Yu. I.; Andruk, V. N.; Relke, H. The original astrometric software package for digitized photographic plates, in Book: Results of processing of digitized astronomical photographic plates / comp. by V.Andruk.- Riga: LAMBERT Academic Publish., 2018.- 58 p.- (ISBN-10:6139830346EAN: 9786139830343), p. 33-36

3. Yuldoshev, Q.; Protsyuk, Y.; Relke, H.; Ehgamberdiev, S.; Muminov, M.; An-druk, V. Catalog of equatorial coordinates and B-magnitudes of the Kitab's part of the FON project , Astronomische Nachrichten, Volume 340, Issue 6, pp. 494-509

4. Shatokhina, S. V.; Relke, H.; Yuldoshev, Q.; Andruk, V. M.; Protsyuk, Yu. I.; Muminov, M. Asteroids search results in digitized observations of the Northern Sky Survey project (Kitab part), Odessa Astronomical Publications, 2018, vol. 30, p. 235

Photographic Survey of the Northern Sky (Фотографічний огляд Північного неба - ФОН)

Catalogues of Astrometric Positions and Photometric Stellar Magnitudes of SS Bodies (Каталоги астрометричних положень та фотометричних зоряних величин тіл Сонячної системи)

Astrometric and Photometric Catalogues for research in stellar kinematics (Астрометричні та фотометричні каталоги для зоряно-кінематичних досліджень)

Catalogues of Positions and Orbital Elements of Geosynchronous Space Objects (Каталоги положень та орбітальних елементів геосинхронних небесних об'єктів)

L.Pakuliak. Questions, remarks and propositions are welcome.